Shop › Favorite Baby Onesie Image 1 of 2 Image 2 of 2 Favorite Baby Onesie $20.00 100% ring-spun combed cotton Heather colors are 52% ring-spun combed cotton and 48% polyester Fabric weight: 3.9 oz/y² (132.2 g/m²) Side-seamed construction Envelope neckline Three-snap leg closure Color: Select Color Black Athletic Heather Size: Select Size 3-6m 6-12m 12-18m 18-24m Add To Cart Added! 100% ring-spun combed cotton Heather colors are 52% ring-spun combed cotton and 48% polyester Fabric weight: 3.9 oz/y² (132.2 g/m²) Side-seamed construction Envelope neckline Three-snap leg closure